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한순화,이강오,나덕미 조선대학교 부설 의학연구소 1999 The Medical Journal of Chosun University Vol.24 No.1
This is a correlational study analyzing the relationship between burden and qualify of life in mothers of mentally retarded children. The subjects for this study were 104 mothers of retarded children at a retarded welfare center, early training of retarded children rehabilitation center, and retarded school in Kwangju. Data were collected from 1st Feb. to 27th Feb, 1998. The instruments used for this study were the burden scale developed by Seo, and the quality of life scale developed by Yang. The data were analyzed by the t-test, ANOVA, and Pearson's Correlation Coefficient using SPSS. The results of this study were as follows : The mean score of burden:3.08, The mean score of quality of life: 2.60, The mean score of subscale : family relationship: 3.20, self-esteem and general life; 3.08, friends and relationships; 2.70, physical and psychological health; 2.56, economical life (cloths. food) ; 2.52, job and daily work; 2.27, recreation, 2.07, recreation, job and daily work scored lowest. The analysis of the level of burden according to general characteristics of the subjects showed statistically significant differences in husband's help (F=4.21, p=.018), and the degree of retardation in the children(F=13.67, p=.000). The 1st hypothesis, "e mothers' burden differed according to the degree of their children's MR"as supported. The analysis of qualify of life according to general characteristics of the subjects showed statistically significant differences in living state(t= 2.19, p= .031) , the health state of mothers(F=4.17, p= .018), husband's help(F= 11.55, p= .000) , and the degree of retardation in the children(F=3.76, p= .013). The 2nd hypothesis, "e mothers' quality of life differed according to the degree of their children's MR"as supported. The correlation between burden and quality of life was statistically significant(r=-0.562, p=.000). The 3rd hypothesis, "e lower the level of burden, the higher the quality of life" was supported. In conclusion, it was found that the lower the level of burden is, the higher the quality of life becomes.
한정화,최덕경 안성산업대학교 1996 論文集 Vol.28 No.-
This study is mainly concerned with the consumer problems according to the quantity and the interests of the information search of the urban housewives. The samples are composed of 347 adolescent consumers filtered by the purposive sampling. In order to achieve study objects, the statistics used for data analysis are frequency distribution, percentile, t-test, analysis of variance and multiple regression analysis. The information search of the housewives showed the significant differences between the family life cycle, the age, the living style and the income. And the perceptions of the consumer problems showed the significant differences between the family life cycle, the living style, the income, the quantity of the information search and the interests of the information search. Findings of this study suggest the housewives have difficulties in finding the information search. In order to improve the economic and the social wellbeing of the urban housewives, this study suggests that the younger, the aged and the other type of consumers should have an opportunity to improve their knowledge and the information. So the consumers should have the ability to cope with their problems faced in the market place. The current government and the business policy should be reevaluated and revised for the improvement of the consumer welfare.
최덕경,한정화 안성산업대학교 1996 論文集 Vol.28 No.-
This study is mainly concerned with providing a basis for the development of the consumer competencies of the university students. The samples are composed of 755 adolescent consumers filtered by the purposive sampling. In order to achieve study objects, the statistics used for data analysis are frequency distribution, percentile, t-test, analysis of variance and multiple regression analysis. Consumer skills show the significant differences between the gender, grade and pocket-money. And consumer role attitudes show the significant differences between the gender, grade, major and consumer skills. Findings of this study suggest the need for the further researches. Developing the comprehensive consumer competency measurement should include the younger, the aged and the other type of consumers as well as the adolescent consumers. We might improve the explanatory power of the consumer competency measurement and provide the policy implications for the consumer welfare.
중성자에 조사된 원자로 압력용기 재료(SA508)의 Magneto-acoustic emission 효과
홍준화,박덕근,옥치일,김장환,이종규 韓國非破壞檢査學會 1999 한국비파괴검사학회지 Vol.19 No.6
원자로 압력용기 재료인 SA508 steel을 온도 70 ℃와 대기압하에서 최고 10 n/㎠까지 중성자를 조사시켜 조사량에 따른 미세경도 변화와 magneto-acoustic emission(MAE) 에너지를 측정하였다. 중성자 조사에 따른 경도의 변화는 조사량이 10 /㎠까지는 거의 일정하였으나, 조사량이 10 /㎠이상에서 급격히 증가하였다. MAE 에너지의 변화는 중성자 조사량에 따라 경도의 변화와 같은 형태로 변하였으나 그 변화량은 감소하여 그변화의 추이는 경도의 변화와는 역의 형태였고, 또한 MAE에너지의 상대적 변화와 경도 변화사이에는 아주 좋은 선형성을 보였다. 이러한 결과에서 SA508 강재는 10 /㎠이상의 중성자에 조사될 경우에 재료에 중성자 조사에 의한 미세 결함이 급격히 증가하여 전위(dislocation)이동에 대한 저항성을 나타내는 마찰경화의 증가가 경도의 증가를 유발하고, 또한 이러한 미세 결함은 자기장과의 반응에서는 90°자벽의 운동중에 자기탄성 변화를 유도하여 MAE 에너지의 감소를 유발함을 알 수 있었다. 그리고 경도의 변화량보다 MAE 에너지의 변화량이 더 크게 나타나, 중성자 조사에 의한 미세결함은 기계적 성질보다 자기적 성질에 더 민감하게 반응한다는 것을 알 수 있었다.따라서 MAE가 중성자 조사에 의한 재료의 미세 구조 결함을 비파괴적인 방법으로 평가하는 강력한 도구의 가능성이 있음을 알 수 있었다. Magneto-acoustic emission (MAE) energy and hardness were measured in the reactor pressure vessel steel (SA508 Steel) for the various neutron fluence, irradiated dose up to 10 n/㎠. The hardness was nearly a constant up to 10 n/㎠, but it was rapidly increased with an increase of the neutron irradiation above 10 n/㎠. It may be considered that the increase of hardness is due to the hindrance of dislocation motion induced defect clusters by irradiation. On the other hand, the MAE energy was slowly decreased as the neutron irradiation increased up to 10 n/㎠ and it was rapidly decreased with an increase of the neutron irradiation increased up to 10 n/㎠ and it was rapidly decreased with an increase of the neutron irradiation above 10 n/㎠. The decrease of the MAE energy may be considered as an increase of the defect clusters which is very sensitive to the 90°domain wall motion. Furthermore, the change of MAe energy and hardness had nearly a linear relationship, but the change of MAE energy was more significant than the change of the hardness. Therefore, MAe may be considered as a very useful technique for the nondestructive evaluation of irradiation damage.
Aspergillus parasiticus R-716의 生育 및 Aflatoxin生産에 미치는 薑黃(curcuma longa L.) 엑기스의 影響
鄭德和 慶尙大學校 1984 論文集 Vol.23 No.2
동양에서 오랫동안 암과 비슷한 질병의 치료에 사용되어 온 薑黃(Curcuma longa L.)이 供試菌(Aspergillus parasiticus R-716)의 生育 및 aflatoxin 生成에 미치는 영향을 조사하기 위하여 물이나 유기용매로서 엑기스를 조제하였다. 薑黃은 chloroform에 의한 추출이 가장 果的이었고 첨가하는 엑기스농도의 증가에 따라 供試菌의 生育과 aflatoxin 生育은 抑制되었고, 薑黃엑기스를 0.2ml 첨가하였을 경우 대조구는 배양 3일후 약 80%의 균체증식을 보였으나 첨가구는 4일부터 형성이 시작되어 9일째에는 0.474g/25ml로 52%가 저해되었고, aflatoxin도 대조구는 5일후에 대체로 생성되었으나, 첨가구는 늦어져 9일째는 대조구의 69%인 946㎍/25ml로서 감소되었다. 그러나 균체 g당 aflatoxin 함량과 배양기간 중 NADPH oxidase 활성은 첨가구가 오히려 높았다. The possible effects of Ganghwang(Curcuma longa L.), which have long been used to treat cancer like disease in oriental countries, on growth and aflatoxin production by Aspergillus parasiticus R 716 were investigated. The most effective solvent used for extraction of Ganghwang was chloroform. The growth and aflatoxin production decreased with the increase in extract concentration. With the addition of 0.2ml Gangwhang extract in 25ml SLS medium, the inhibition of mold growth was delayed for about 4 days and after 9 days, mycelium weight was inhibited 52%(0.474g/25ml) of that showed in the control(0.985g/25ml). and total aflatoxin was also reduced 31%(946㎍/25ml) of that produced in the control(1352㎍/25ml). but aflatoxin per mycelium weight and activity of NADPH oxidase were higher as compared to the control.
장덕희,황보영,리갑수,김화성,이성수,안규동,이병국 순천향대학교 산업의학연구소 1997 순천향산업의학 Vol.3 No.1
To evaluate the health status of lead workers in telecommunication industry, author studied 369 male workers working in a telecommunication industry. Study variables chosen were blood zinc protoporphyrin(ZPP), hemoglobin, serum glutamic oxalacetic transaminase(SGOT), serum glutamic oxalacetic transaminase(SGPT), γ-glutamyltrans-peptidase(GGT) and hepatitis B virus antigen and antibody. Personal data such as smoking and drinking habit, work duration were also collected. 15 lead related symptom questionnaires were provided to all lead workers and filled up by themselves and reconfirmed by physician. The results were obtained as follow; 327 workers(89%) among 369 workers were healthy and 42(11%) workers abnormal health state. 9 workers were disease state among 42 workers those who were abnormal health state. The most frequent disease was liver disease(52.4%), and next was hypertension(26.2%) and then anemia(9.5%), hyperlipidemia(4.8%) and pulmonary tuberculosis(4.8%) in order of frequency. There was no case of lead intoxication. The mean of blood ZPP concentration of study subjects was 14.4±6.9㎍/㎗ and maximum blood ZPP concentration was 48.0㎍/㎗. The means of GOT, GPT and GGT were 29.4±10.0unit/L, 19.7±14.4unit/L and 38.7±31.5unit/L, respectively. The prevalence rate of hepatitis B virus antigen was 6.8% and the one of hepatitis B virus antibody was 43.6%. The symptoms with high prevalence rate above 40% were six; 'loss of appetite', 'frequent numbness of fingers or feet', 'feeling tired or fatigue generally', 'becoming nervous or sensitive to not important things', 'feel dizziness when standing up', and 'feel sleepy frequently'. The prevalence rate of symptoms were increased by the increase of age. The prevalence rate of symptoms were higher in smoking group and drinking group than non-smoking group and non-drinking group, respectively.
Mycotoxin을 중심으로 한 전통식품의 위생학적 연구
정덕화 동아시아식생활학회 1996 동아시아식생활학회지 Vol.6 No.1
Certain Fungi including Aspergillus flavus produce low molecular secondary metabolite that is toxic to human and animals, which have been termed mycotoxin. Given the proper humidity and temperature like summer in Korea, are capable of growing of those hazard fungi and elaborating mycotoxin on almost any organic substrate such as traditional foodstuffs and their raw materials including rice, barley, corn, meju, doenjang and gochujang etc. Until now, some people have examined to isolate various fungi such as Aspergillus sp., Penicillimn sp, and Fusarium sp. from traditional foodstuffs and raw materials, and have screened various mycotoxin producing strains. Some mycotoxin contamination such as aflatoxin, ochratoxin, deoxynivalenol(DON) and zearalenone etc. also have been confirmed from similar above samples. But these data are different each other and inconsistent in experimental conditions and methods. Especially, almost experiments have been finished for one time. So more consistent experimental method and data are necessary to evaluate objectively the safety of traditional foodstuffs subjected to the mycotoxin. For this purpose, we have to apply a new advanced technology to develop more simple and rapid methods for determination of mycotoxin and also have to concentrate our efforts on activation of research and accumulation of technology with sustaining investment of financial support and enlargement of research installation. With those harmonious efforts, it should be possible to examine continuously and systematically the mycotoxin contamination in our traditional foodstuffs and to assure the safety of them. Then we can maintain and develop the better traditional foodstuffs suited to internationalization.
동등백분위법을 이용한 순발력 검사 방법간의 동등화 방안
남덕현,윤상화,김도준,박재우 龍仁大學校 體育科學硏究所 1999 體育科學硏究論叢 Vol.9 No.1
This paper is designed to equalize the points obtained from different tests of agility by means of equipercentile equating in accordance with grade and sex. The subjects consist of 923 high school students who have ever gone through the tests of power. As a result, I have reached the following conclusion. 1. I used equipercentile equating for recording the tests of power of the first male graders, coming up with equalized values such as 223㎝ in a standing board jump, 33.7m in five seconds' running and 42m in throwing, and 53m in a vertical jump at the 50 percent level. 2. The second male graders, coming up with equalized values such as 232㎝ in a standing board jump, 33.5m in five seconds' running and 42m in throwing, and 57㎝ in a vertical jump at the 50 percent level. 3. The third male grades, coming up with equalized values such as 242㎝ in a standing board jump, 34.8m in five seconds' running and 45m in throwing, and 57㎝ in a vertical jump at the 50 percent level. 4. The first female graders, coming up with equalized values such as 168㎝ in a standing board jump, 25.8m in five seconds' running and 10m in throwing, and 34㎝ in a vertical jump at the 50 percent level. 5. The second female grader, coming up with equalized values such as 174㎝ in a standing board jump, 25.8m in five seconds' running and 17m in throwing, and 31㎝ in a vertical jump at the 50 percent level. 6. The third male graders, coming up with equalized values such as 187㎝ in a standing board jump, 27m in five seconds' running and 16.6m in throwing, and 30㎝ in a vertical jump at the 50 percent level.
도시주부의 과거. 현재. 미래측면에서 본 주관적 경제복지감
한정화,최덕경,최동숙 안성산업대학교 1999 論文集 Vol.31 No.-
Economic welfare of a family is regarded as utilization of the flow of goods and services on which the family has command from its production and consumption. The purpose of this study is to investigate some influencing factors related to the urban housewives' subjective economic well-being. Questionnaires were used to the 1800 housewives in Seoul from the end of September to the end of October in 1996. The 1261 data obtained were analyzed by Frequency, Percentage, mean, t-test, F-test, Duncan's Posthoc Test, and Stepwised Multiple Regression with SPSS PC^+. The major finding of this study were summarized as follows; (1) There were significant differences on the subjective economic well-being for the urban housewives according to the social demographic variables (housewives' age, education and healthy condition). (2) There were significant differences on the subjective economic well-being for the urban housewives according to the objective variables (residence price, income, savings, debt and education). (3) There were significant differences on the subjective economic well-being for the urban housewives according to the perceptions of the economic conditions (working satisfaction, the perception of the relative comparison, the government policy for the price and the tax, the perception of the living standards and the subjective social class). (4) There were significant differences on the subjective economic well-being for the urban housewives according to the leisure and family variables (children number, the family life cycle, leisure satisfaction, the coincidence of the conjugal opinion and the types of the conjugal buying decision. The current government and the education policy should be reevaluated and revised for the improvement of the housewives' welfare.
남성의 광고관심도와 유행추구에 따른 구매의식과 구매행동에 관한 연구
한정화,최덕경 안성산업대학교 1998 論文集 Vol.30 No.2
This study is mainly concerned with the buying perception and buying behavior according to the advertisement concerns and the fashion pursuit of the urban males. The samples are composed of 750 adolescent male consumers filtered by the purposive sampling. In order to achieve study objects, the statistics used for data analysis are the frequency distribution and the multiple regression analysis. The advertisement concerns of males showed the significant differences between the education and income. The fashion pursuit of males showed the significant differences between the family type, the pocket-money and the advertisement concerns. The buying perceptions of males showed the significant differences between the pocket-money. The buying behaviors of males showed the significant differences between the family type, pocket-money and the buying perceptions. Findings of this study suggest the males also have concerns of the advertisement and fashions. But they have difficulties in finding the information search, In order to improve the economic and the social wellbeing of the urban males, this study suggests that the younger, the aged and the other type of consumers should have an opportunity to improve their knowledge and the information. So the consumers should have the ability to cope with their problems faced in the market place. The current government and the business policy should be reevaluated and revised for the improvement of the consumer welfare.